#include <stdio.h>

int main()
{	 	       	 
    int hour, minute, interval;

    interval = 1; //interval = 15;

    for (hour = 0; hour <= 12; hour++)
    {	 	       	 
        for (minute = 0; minute < 60; minute += interval)
        {	 	       	 
            printf("%d:", hour);
            if (minute < 10)
            {	 	       	 
                printf("0%d\t", minute);
            }
            else
            {	 	       	 
                printf("%d\t", minute);
            }
        }
    }

    return 0;
}	 	   